You can see one modded here.viewtopic.php?f=1&t=2380826&p=797312&hilit=redline#p797312
Like I said, I wouldn't start with a Redline bar by preference and would use the Naish Universal swivel.
I haven't owned a Best kite, but there is a trick which may work with it.
When you go to the mini-fifth, before the kite hits the water, pull in as much as you can reach of the flagging line and at the moment the kite hits the water, release it. That may make the kite drop on it's back. Its not a solution but may help get the kite onto it's back without having to try to swim towards it.